ACCT is a type of business software to perform of bookeeping and accounting activities.

At first ACCT represented by simple single-entry software systems for personal or home accountancy like personal finance managers that provide possibilties for automation of writing and record incomes and expenses.

At second ACCT represented by complicated double-entry systems that are based on true bookeeping and accounting principles and can do all required operations and produce required management, finance and tax reports.